﻿// Copyright 2017 the original author or authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using System;
using System.IO;

namespace Steeltoe.Common.Http
{
    public static class SerializationHelper
    {
        public static T Deserialize<T>(Stream stream, ILogger logger = null)
        {
            if (stream == null)
            {
                throw new ArgumentNullException(nameof(stream));
            }

            try
            {
                using (JsonReader reader = new JsonTextReader(new StreamReader(stream)))
                {
                    JsonSerializer serializer = new JsonSerializer();
                    return (T)serializer.Deserialize(reader, typeof(T));
                }
            }
            catch (Exception e)
            {
                logger?.LogError("Serialization exception: {0}", e);
            }

            return default(T);
        }
    }
}
